本文選題：幾何過程 + 預(yù)防維修策略��； 參考：《西南交通大學(xué)》2012年碩士論文

【摘要】：本文主要研究基于幾何過程的兩種失效狀態(tài)系統(tǒng)的預(yù)防維修策略。 首先,本文在文獻(xiàn)[40]基礎(chǔ)上增加預(yù)防性維修,并假定系統(tǒng)預(yù)防維修時間間隔為一定值,系統(tǒng)失效方式按可修復(fù)失效和不可修復(fù)失效。可修復(fù)失效可以進(jìn)行失效修復(fù),而不可修復(fù)失效使系統(tǒng)報廢只能進(jìn)行替換。在此基礎(chǔ)上,求解平均費用率C(N)的表達(dá)式和最優(yōu)維修策略N’,并通過實際數(shù)據(jù)驗證維修策略的實用性。 其次,考慮讓系統(tǒng)預(yù)防維修的時間間隔成為一個變化的值。在系統(tǒng)運行的過程當(dāng)中,當(dāng)可靠度降至R時,系統(tǒng)就進(jìn)行預(yù)防維修。建立關(guān)于可修復(fù)失效次數(shù)N的預(yù)防維修策略,給出平均費用率的表達(dá)式。并給出一算例,得到最優(yōu)預(yù)防維修策略N‘及相應(yīng)的平均費用率。 最后,在相同的條件下,與文獻(xiàn)[40]的模型進(jìn)行比較,得出預(yù)防性維修策略更為合適。
[Abstract]:In this paper, the preventive maintenance strategies of two failure state systems based on geometric processes are studied. Firstly, preventive maintenance is added on the basis of reference [40], and the system preventive maintenance interval is assumed to be a certain value, and the failure mode of the system is repairable and irrepairable. Repairable failures can be repaired, but irreparable failures can only be replaced by system scrapping. On this basis, the expression of average cost rate C (N) and the optimal maintenance strategy N are solved, and the practicability of the maintenance strategy is verified by actual data. Second, consider making the system preventive maintenance interval a variable value. During the operation of the system, the system carries out preventive maintenance when the reliability drops to R. The preventive maintenance strategy for the number of repairable failures N is established and the expression of the average cost rate is given. An example is given to obtain the optimal preventive maintenance strategy N 'and the corresponding average cost rate. Finally, under the same conditions and compared with the model in reference [40], it is concluded that preventive maintenance strategy is more suitable.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH17

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

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本文編號：2105951